Rival Arms In-Line MOS Night Sights (brand part number RA4B231G) give double-stack 9mm Glock 17 and 19 owners a consistent green tritium glow day and night, with a white-outlined front dot and a matching white-outlined rear dot for a clean, symmetrical daylight picture. Built specifically for M.O.S. slides and other slides carrying a mounted optic, the height is set to co-witness properly through the optic window. The frame is CNC-machined from stainless steel in a snag-resistant design, so it draws clean from a holster.

Key Specifications

• Fits double-stack 9mm Glock models, including the G17 and G19.
• Front sight uses a white outline around the green tritium lamp for daylight visibility.
• Rear sight uses a matching white outline around its green tritium lamp.
• Built for M.O.S. slides to properly co-witness through a mounted optic.
• CNC-machined from stainless steel in a snag-resistant design.

Frequently Asked Questions

Which Glocks does this set fit? Double-stack 9mm Glock models, including the G17 and G19.

What does M.O.S. mean for these sights? They’re height-matched for M.O.S. slides so the sights properly co-witness through a mounted optic.

Are both front and rear outlines the same color? Yes, both use a matching white outline for a clean, symmetrical daylight picture.

Buy the Rival Arms In-Line MOS Night Sights for Glock 17/19, White Outline

Co-witness your optic with a night sight set built for it. Order this Rival Arms set, part of our full gun sights selection, from our Lubbock, Texas gun shop for fast, direct shipping.